ADT Recalls Carbon Monoxide Detectors Due to Failure to Properly Indicate End of Useful Life

When the CO detectors reach the end of their useful life, they should send a signal to make a sound in the home alarm panel alerting consumers it is time to replace them and a sig…

Recall #: 12701
Affected scope: About 20,000

Compiled from official public sources by the publisher. · Updated September 2026

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Sensor System, of St. Charles, Ill. recalled This recall involves hard-wired carbon monoxide detectors with model CO 1224T installed b….

ADT Recalls Carbon Monoxide Detectors Due to Failure to Properly Indicate End of Useful L… was recalled by Sensor System, of St. Charles, Ill. in October 20, 2011. Reason: When the CO detectors reach the end of their useful life, they should send a signal to make a sound in the ho…. Remedy: Consumers should contact ADT immediately for a free inspection of the recalled detectors …. Verify recall #12701 with the CPSC before acting.

The recall

Sensor System, of St. Charles, Ill. issued this CPSC recall-When the CO detectors reach the end of their useful life, they should send a signal to make a sound in the ho….

None
agency class: October 20, 2011
reported

Sourced from official CPSC enforcement records. Verify recall #12701 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution information was not included in the agency filing, so consumers should assume broad potential exposure until the firm publishes point-of-sale details. Consumers holding this product should act on the agency's documented remedy above rather than relying on general guidance.

Within the same product category the archive holds 6 closely related recalls, 6 from CPSC - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Product description

This recall involves hard-wired carbon monoxide detectors with model CO 1224T installed by ADT. The model number is behind the front cover.

Reason for recall

When the CO detectors reach the end of their useful life, they should send a signal to make a sound in the home alarm panel alerting consumers it is time to replace them and a signal to ADT's alarm monitoring center. Some of the detectors were not wired properly to the ADT alarm system, resulting in the sound not going off in the home alarm panel and no signal to the ADT alarm monitoring center at the end of its useful life. Not replacing a CO detector at the end its useful life poses a CO poisoning hazard to consumers.

Remedy, what to do

Consumers should contact ADT immediately for a free inspection of the recalled detectors and, if necessary, a free repair. Consumers should not attempt to disable the recalled detectors. ADT has contacted all customers.

Recall Profile

Structured summary of the CPSC recall record
Attribute	Value
Agency	U.S. Consumer Product Safety Commission
Severity class	Not classified by agency
Status	Active
Recall number	12701
Date reported	October 20, 2011
Date initiated	October 20, 2011
Recalling firm	Sensor System, of St. Charles, Ill.
Affected scope	About 20,000
Distribution	Not disclosed
Official source	CPSC notice →

Profile values are sourced directly from the official CPSC enforcement record. Source: U.S. Consumer Product Safety Commission.

What to do with this recall

Consumers should contact ADT immediately for a free inspection of the recalled detectors and, if necessary, a free repair. Consum…

Check the recall number (12701) and product description against the item you own. Search the archive
Confirm the current status and remedy on the official CPSC notice before acting. CPSC notice
Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official CPSC record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled? ▼

This recall involves hard-wired carbon monoxide detectors with model CO 1224T installed by ADT. The model number is behind the front cover.. Recalled by Sensor System, of St. Charles, Ill.. Units affected: About 20,000.

Why was this product recalled? ▼

What should consumers do? ▼

Which agency issued this recall? ▼

This recall was issued by the CPSC on October 20, 2011. CPSC does not publish a hazard classification for this recall. Recall number: 12701.

How do I report an injury from a recalled product? ▼

Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.

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This recall: CPSC, reported October 20, 2011. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026